Solution: Some kidney stones form by the precipitation of calcium oxalate monohydrate (CaC2O4·H2O, Ksp = 2.3 × 10−9). The pH of urine varies from 5.5 to 7.0, and the average [Ca 2+] in urine is 2.6 × 10−3 M.(c) Vegetarians have a urine pH above 7. Are they more or less likely to form kidney stones?

Problem

Some kidney stones form by the precipitation of calcium oxalate monohydrate (CaC2O4·H2O, Ksp = 2.3 × 10−9). The pH of urine varies from 5.5 to 7.0, and the average [Ca 2+] in urine is 2.6 × 10−3 M.

(c) Vegetarians have a urine pH above 7. Are they more or less likely to form kidney stones?